Improvement in carding-machines for preparing bats for felting



UNITED STATES SAMUEL G. BLAOKMAN, OF

PATENT OFFICE.

NORIVALK, CONNEC'IICUT.

IMPROVEMENT IN CARDlNG-MACHINES FOR PREPARING BATS FOR FELTING.

To aZZ whom t may concern:

Be it known that I, SAMUEL G. BLACKMAN, of Norwalk, in the county of Faireld and State of Connecticut, have invented a new and Improved Manner of Crossing and Interlocking the Fibers of Tool Preparatory to Manufacturing Them into Felt Cloth; and I do hereby declare the following to be a full and exact description thereof, reference being had to the accompanying drawings, making a part of this specification.

The nature of my invention consists in in`- terlocking the fibers of wool while they are on the doit'er of a carding-machine by curling their extremities backward, laterally or obliquely, by means of the action of some suitable rubbing or combing surface brought nearly in contact with the teeth of the dotfer.

In the accompanying drawings, Figure lis an elevation of a carding-nrachine dotfer having several diiferently-arranged rubbing-surfaces combined therewith, for the purpose of curling and interlocking the libers Aof wool with each other, and Fig. 2 is a transverse section through Fig. 1.

Similar letters indica-te corresponding parts in both iigures.

I find that reversed needle-pointed cards make an excellent rubbing or combing surface for producing the above-mentioned -intei-locking combination of wool fibers while they are on the doffer; but I do notintend to4 limit myself to the use of card-teeth rubbing or combing surfaces for the purpose before mentioned, as other kinds of surfaces may perhaps answer as good a purpose.

A is the doffer.

B is a stationary narrow card with reversed teeth that are brought nearly in contact with the teeth of the doffer, and consequently, as the doifer is revolved, the card B will curl the extremities of the bers backward and interlace them.

C is a card-covered cylinder having a lon- ,gitudinally-reciprocating movement, and a rlhe above-named card B may have a longit-udin ally-reciprocating movement imparted to it, if deemed preferable, and the cylinder C may simply have a rotating movement imn parted to it in place of the combined reciproeating and rotary movement, as above set forth.

Having thus fully described my invention, I would state that I do not claim the producing an interlocking of the iibers of Wool by means of a reciprocating longitudinal movement of either the carding-eylinders of a carding-maehine working against the doffer; but

That I do claim as my invention, and desire to secure by Letters Patent, is-

'lhe production ot' the requisite interlocking combination of the fibers of Wool preparatory to converting the same into felt cloth by subjecting the said fibers to a rubbing or combing action while they are upon the doffer of a carding-machine by means of auxiliary cards or other suitable friction-surfaces, substantially as herein set forth, not intending by this claim, however, to limit myself to the special and particular manner of prod ueing the said interlocking of the fibers of wool while they are upon the carding machine doffer, as herein set forth.

SAMUEL G. BLACKMAN.

\Vitnesses:

Z. C. ROBBINS, DANIEL BARNUM. 

